engine.pipeline.config_schemas.FluidConfig Class Reference

Inheritance diagram for engine.pipeline.config_schemas.FluidConfig:

Collaboration diagram for engine.pipeline.config_schemas.FluidConfig:

Static Public Attributes
float	density = Field(gt=0, description="Density [kg/m³]")
float	viscosity = Field(gt=0, description="Dynamic viscosity [Pa·s]")
float	surface_tension = Field(gt=0, description="Surface tension [N/m]")
float	vapor_pressure = Field(ge=0, description="Vapor pressure [Pa]")
float	specific_heat = Field(default=2200.0, gt=0, description="Specific heat at constant pressure [J/(kg·K)]")
float	thermal_conductivity = Field(default=0.15, gt=0, description="Thermal conductivity [W/(m·K)]")
float	temperature = Field(default=293.15, gt=0, description="Bulk fluid temperature [K]")
Optional	latent_heat = Field(default=None, gt=0, description="Latent heat of vaporization [J/kg] (fuel only)")
Optional	boiling_point = Field(default=None, gt=0, description="Boiling point at 1 atm [K] (fuel only)")
Optional	molecular_weight = Field(default=None, gt=0, description="Molecular weight [g/mol] (fuel only)")
Optional	bulk_modulus_pa = Field(default=None, gt=0, description="Liquid bulk modulus [Pa] — feed acoustics / water-hammer (stability). Preset-supplied; see configs/propellants/.")
Optional	critical_temperature
Optional	injection_phase

Detailed Description

Fluid property configuration

Definition at line 10 of file config_schemas.py.

Member Data Documentation

boiling_point

Optional engine.pipeline.config_schemas.FluidConfig.boiling_point = Field(default=None, gt=0, description="Boiling point at 1 atm [K] (fuel only)")

static

Definition at line 22 of file config_schemas.py.

bulk_modulus_pa

Optional engine.pipeline.config_schemas.FluidConfig.bulk_modulus_pa = Field(default=None, gt=0, description="Liquid bulk modulus [Pa] — feed acoustics / water-hammer (stability). Preset-supplied; see configs/propellants/.")

static

Definition at line 24 of file config_schemas.py.

critical_temperature

Optional engine.pipeline.config_schemas.FluidConfig.critical_temperature

static

Initial value:

=  Field(
        default=None, gt=0,
        description=(
            "Liquid critical temperature [K]. Sets the evaporation constant in the chug time-lag "
            "model (Leonardi 2017 eq. 9) — a PROPELLANT property, so it belongs here rather than in "
            "a table inside the stability code. None = look it up (CoolProp, then handbook), and the "
            "lookup is recorded in the assumptions registry."
        ),
    )

Definition at line 25 of file config_schemas.py.

density

float engine.pipeline.config_schemas.FluidConfig.density = Field(gt=0, description="Density [kg/m³]")

static

Definition at line 13 of file config_schemas.py.

Referenced by feedtwin.vessels.volume.GasVolume.compressibility(), feedtwin.vessels.collapse.LiquidThermal.diffusivity(), feedtwin.vessels.volume.GasVolume.enthalpy(), feedtwin.vessels.volume.GasVolume.pressure(), feedtwin.vessels.volume.GasVolume.temperature(), and feedtwin.engine.balance.SideBalance.velocity().

injection_phase

Optional engine.pipeline.config_schemas.FluidConfig.injection_phase

static

Initial value:

=  Field(
        default=None,
        description=(
            "Phase of this propellant AT THE INJECTOR FACE. A gas neither atomizes nor vaporizes, so "
            "it carries only the mixing lag in the chug model; running a droplet-lifetime model on it "
            "invents a lag that does not exist. None = infer from temperature vs critical point and "
            "vapor pressure vs chamber pressure."
        ),
    )

Definition at line 34 of file config_schemas.py.

latent_heat

Optional engine.pipeline.config_schemas.FluidConfig.latent_heat = Field(default=None, gt=0, description="Latent heat of vaporization [J/kg] (fuel only)")

static

Definition at line 21 of file config_schemas.py.

molecular_weight

Optional engine.pipeline.config_schemas.FluidConfig.molecular_weight = Field(default=None, gt=0, description="Molecular weight [g/mol] (fuel only)")

static

Definition at line 23 of file config_schemas.py.

specific_heat

float engine.pipeline.config_schemas.FluidConfig.specific_heat = Field(default=2200.0, gt=0, description="Specific heat at constant pressure [J/(kg·K)]")

static

Definition at line 17 of file config_schemas.py.

surface_tension

float engine.pipeline.config_schemas.FluidConfig.surface_tension = Field(gt=0, description="Surface tension [N/m]")

static

Definition at line 15 of file config_schemas.py.

temperature

float engine.pipeline.config_schemas.FluidConfig.temperature = Field(default=293.15, gt=0, description="Bulk fluid temperature [K]")

static

Definition at line 19 of file config_schemas.py.

Referenced by feedtwin.vessels.volume.GasVolume.rates().

thermal_conductivity

float engine.pipeline.config_schemas.FluidConfig.thermal_conductivity = Field(default=0.15, gt=0, description="Thermal conductivity [W/(m·K)]")

static

Definition at line 18 of file config_schemas.py.

vapor_pressure

float engine.pipeline.config_schemas.FluidConfig.vapor_pressure = Field(ge=0, description="Vapor pressure [Pa]")

static

Definition at line 16 of file config_schemas.py.

viscosity

float engine.pipeline.config_schemas.FluidConfig.viscosity = Field(gt=0, description="Dynamic viscosity [Pa·s]")

static

Definition at line 14 of file config_schemas.py.

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The documentation for this class was generated from the following file:

• EngineDesign/engine/pipeline/config_schemas.py